Heating system for motor-vehicles.



"m; 728 ,4a0. PATENTBD'MAYIQ, 19.03.

w.- 0. WORTH 81W. 3. DONALDSON. "HEATING SYSTEM PORMOTOR VEHICLES.

APPLIOLT'IORIILED 111154902. k

' a SHEETS-SHEET 1.

10 MODEL.

v P'ATENTED-MAY 1 ,1903. W.'-0.WORTH&W.R.-DONALDSONJ v I HEATING SYSTEM 'FO'R'MOTORVEHIGLES.

APPLICATION FILED MAR. 15, 1992.

a sums-835m 2.

no uonnL.

. UNITED I STATES Patented May 19, 190s.

PATENT OFFICE.

WILLIAM WORTH OF C A ILLINOIS, AND WILLIAM R. DONALDSON, Q or LOUISVILLE, KENTUCKY, V

HEATING SYSTE M MOTOR-VEHICLES.

SPECIFICATION forming part of Letters Patent No. 728,430, dated May 19, 1903.

Application filed March 15, 1902. Serial No. 98,442. (NomodeL) i To all whom it may concern.-

Be it known thatwe, WILLIAM O. WORTH, of Chicago, in the county of Cook and State of Illinois, and WILLIAM R. DONALDSON,' Of Louisville, in the county of Jefferson and State of Kentucky, have invented certain new and useful Improvements in Heating Systems for Motor-Vehicles; and we hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the'accomp'anying drawings, which form part of this specification.

Our invention relates to improvements in heating systems for motor-vehicles, and especially that class of motor-vehicles in which an internal-combustion engine is employed for producing the necessary motive power for propelling the said vehicle.

One of the objects of our invention is to provide a means for utilizing the heat units of such an engine that would otherwise be wasted for the purpose of heating the vehiclebody, and thus provide a larger -cooling-surface for the circulating water, which is adapted to carry ofi the excessive heat from the combustion-chamber and exhaust-pipes of the engine by conducting it into the heat-radiating coils placed within the body of said vehicle.

vide a cooling system or tank for the circulation of the cylinder-cooling water, placed outside of the vehicle-bod y, and to provide a suitable valve by means of which the circulating water may all directly pass through the heatradiating coils within the vehicle-body or into the cooling circulating system placed outside of the said body, and, furthermore, by means of the said valve a portion of the heating water may be directed into the heat-radiating system within the vehicle-body and another portion first into the cooling circulating system without the said body, then into the system within the vehicle, whereby the tempera-,

ture of the vehicle may be regulated proportionally to the temperature of water circulating'within the heat-radiating system located therein. 1

A further object of our invention is to provide a means for forcibly circulating water A further object'of our invention is to pro-- through either or both systems by means of a will be obvious to those skilled in the artfrom the description hereinafter, our invention consists in the novel features, details of construction, and combination of parts, which will first be described in connection with the accompanying drawings and then particularlypoiutednout in the claims.

' In the drawings, Figure 1 is a plan diagrammatic view of our radiating systems, the relative arrangement of parts being somewhat distorted for the sake of clearness. Fig. 1

is a sectional elevation illustrating the appli-'" cation of our invention to a motor-vehicle, taken on the broken line indicated by 1 1 in Fig. 1. Fig. 2 is a transverse section through a vehicle, showing the frame of the vehicle, the tank orcoolin'g circulatingsystem located outside of the vehicle-body, coils comprising the system located within the'vehicle-body. Fig. 3 is a broken-away iug the body of the vehicle, the frame, the circulating-tank, and the flexible connection. Fig. .4 is an enlarged detail plan section of the valve and casing by means of which the two systems are connected in the circulatingpath and by which the circulation thereiuis controlled. Fig. 5 is an enlarged detail viewof the removable joint connection by means of which the flexible section is connected to the circulating heat-radiating system within the vehicle-body. Fig.6 is an end view of the same. Fig. Z is a central section of the valve, taken o'n'liues 7 TM Fig. 4. Fig. 8 is a view similar to that of Fig. 4 with the valve slightly turned.

V In all of the views the same numerals of reference indicate similar parts.

l is the frame upon which the propelling engine an d.transn1itting-gear aIe mounted.

2 is ,a circulating-tank comprising part of the outside cooling system through which the cooling-water which surrounds the combustion-chamber and other heated parts of the gasolene-engine circulates, said tank being fixed to the ets 3.

frame 1 by means ofthe brack-.

and the heatinglongitudinal elevation,partlyin sec.tion,showlog 4 is the body of the vehicle, and 5 5are the pipes comprising the heat radiating and ci'rculating system placed within said body.

6 6 are flexible connections joining the outside cooling system connected with the frame 1 to the inside system 5, contained within the 'gether is provided within the engine.

vehicle-body 4. The flexible sections 6 6 are connected in the system at the points 7 and 8. (Shown in the diagrammatic View, Fig. 1.)

9 is a conventional, rotary, or other pump for producing forced circulation throughout the systems. The pump is rotated by means of a belt 10, which is driven from the shaft 11 by means of the pulley 12 on the engine 13.' The pump is not absolutely essential; but its effect is, preferable to natural circulation.

13 is adiagrammatic outline representation of an engine having a cylinder in each end and an operative piston therein.

The pipes -14 and 15 connect with the coolin g-water space surrounding the heated parts of the engine, including the cylinder combustion -chambers and the exhaust-pipes. A means for connecting the water-spaces to- (Not s own in the diagram.)

he tank 2 may be of a conventional form pt'ovided with sufficient cooling-surface and through which the circulating water passes from the fitting l6-to the connection or fitting 17. Pipe 18 is aby-pass to the tank and conscribed. Port 22 passes entirely nects these two fittings together. The pipe 19 connects the fitting 17 with the pipe 15. Pipe 20 connects the pipe 15 with the flexible connection 6. A valve 21 is located in the fitting 17, connecting the piping systems, as dethrough the valve, and a cut-away part 23 provides a port in the side of the valve. Ports 25, 26, and 27 are provided in the fitting 17. A handle 28 is provided for turning the valve 21. 1

29 is an enlarged view of the fixed part of the connecting-joint to which the flexible section 6 is connected, and 30 is a removable portion which is directly connected to the flexible section 6. The two parts 29 and 30 may be ground together upon tapered surfaces,

and a nut 31, which is provided with radiating arms 32, is adapted to be screwed onto the fixed part 29 and to hold the parts 29 and 30 firmly together. It affords an easy means whereby the flexible section 6 may be readily removed when desired.

The operation of our invention is as follows: When the valve 21 is at right angles to its position shown in Fig. 4-that is to say, when the handle 28 is in the position shown in the diagram, Fig. 1the circulation will be as follows: Starting at force-pump 9 the circulating medium will pass through the pipe 14 thencethrough the by-pass pipe 18, through the port 22 of the valve 21, through the ports 27 and 25, ports 26 and 24 being closed,

through the systenis contained within the vehicle-body, including the pipes 5 5,'throug'h the section connection 6 at the point 8, the pipe 20 to the pipe 15, through the waterspace around both cylinders and other heated portions of the engine, thence through the pipe 14 to the circulating-pump 9. All of the circulating water when the valve is in this position passes through the heat-radiating system contained within the body of the vehicle. It will be noted that the'valve-fitting 17 is onthe infiow side of the interior system and .is passed before the circulating medium reaches the radiating-pipes of said system. When the handle 28 and the valve 21 are rotated ninety degrees or in the position shown in Fig. 4, then the port. 22 of the valve will open into the ports 26 and 24 of thecasing, and the circulation will be as follows: from the force-pump 9, through the pipe 14 into the circulating cooling tank 2, from the tank 2, returning through the ports 26, 22, and 24 into the pipe 19, through the pipe 15, through thewater-space surrounding the cylinders and other heated parts of the engine and back through the pipe 14 to the pump 9. In this position of the valve all of the circulating water will pass through the coolingtank 2, while the heat-radiating system within the vehicle-body is entirely out off. Now it the handle 28 is turned so that the valve will occupy the position shown in Fig. 8,practically a midway position between the two former positions described, then the port 22 will be opened partly, or about midway, into the ports 25 and 27, and ports 23 into ports 26 and 25 in the fitting 17, at which time the water will circulate jointly through the cooling-tank and through the by-pass pipe 18 through the partly-opened ports 25, 26, and 27, and the water that passes through the cooling-tank 2 being reduced in temperature will reduce the temperature of the water that passes through the circulating heating system 5 proportional to the quantities passing through the respec-- tive paths before reaching the said heating system. In this manner the temperature of the water that may be circulating through the radiating-pipes within the vehicle may be regulated. By varying the port-openings of this valvepa greater or less quantity of hot water may be passed through the by-pass pipe 18, which will become subsequently mixed with the water, which will have become cooled by passing through the cooling system 2 before passing through the heating system 5 within the vehicle. By this means the temperature of the vehicle may be varied to suit the occasion.

There are many variations that may be made from the construction shown without departing from the spirit and scope of our invention.

Our system may be used for heating rooms in houses or other inclosnres besides motorvehicles' in connection with the operation of an internal-combustion engine.

The valve 28 may be moved by any convenlent connecting mechanism from the interior of the vehicle or from the drivers seat, or it may be operated by means of any of the well- IIO known thermokinetic devicesplaced within the vehicle or room and adapted tooperate the valve by the effect of the changing temperature within said vehicle or room to be heated.

It will be apparent that the coils might advantageously be employed in open vehicles to serve as foot-Warmers, and we do not thereing connected with the source of supply of.

ranged'to disseminate heat within the area to be heated, a radiating system arranged to disseminate its heat without "such area, a common connection betweensaid two systems and the source of supply of the heating me-,

dium, and a valve in said connection adapted to direct the medium in circulation through either or both of said systems.

2. In aheatingsystem,tl1e combination with a source of supply of a heating medium, of a circulating system arranged to disseminate heat within the area to be heated, a circulating system arranged to disseminate its heat without such area, both of said systems bethe heating medium, a connection between the return side of onesystem and the inflow side of the other system, and a valve in saidconnection adapted todirect theflowof the heating medium through said connection,

whereby the cooled medium returning from the one system may be directed into the inflow side of the other system, to reduce the temperature of the medium flowing therein.

3. In a heating system for motor-vehicles, the combination with a source of supply of a heating medium, of a circulating system arranged outside of the vehicle-body, a circulating system arranged within the vehiclebody, a common connection between said two systems and the source of heat-supply,a valve arranged in said connection adapted to direct the heating medium in circulation through either or both of. said systems, and a pump for maintaining the medium in circulation.

4. In a heating system for motor-vehicles, the combination with a source of supply of a heating medium, of a circulating system arranged outside of the vehicle-body, a circulating system arranged within the vehiclebody, a common connection between said two systemsand the source of supply of the heated medium, the interior system being readily detachable from said connection,-a.valve associated with said connection for controlling the circulation of the heating medium through either or both of said systems, and a pump associated with the source of supply for maintaining the heating medium in circulation.

5. In a heating system for motor-vehicles, the combination with an engine having a water-jacket, ot a water-tank arranged outside of the vehicle-body, connections between said tank and the engine-jacket, a by-pass around the tank provided with a valve-fitting, a heating system arranged within the vehicle-body connected to said-fitting and to the enginejacket, and a three-way valve arrangedin said fitting to control the flow of Water through the tank and heating system. V

6. Aheating system for motor-vehicles com prising an internal-combustionengine adapted to propel said vehicle, a water-jacket around the heated portions of said engine, a

heat-radiating system located within thevehicle-body, a heat-radiating system located without said vehicle-body, both systems connected to said water-jacket, and a valve com mon to the connections of both systems for directing the circulation through both and either of said systems.

In testimony thatwe claim the foregoing as our own we aflix our signatures in presence of two'witnesses.

WILLIAM O. -WORTH. WILLIAM R. DONALDSON. 'In presence of some BAIN, MARY F. ALLEN. 

